Biostatistics

Question 1

Types of data

Answer 1

Quantitative (Numerical)
Qualitative (Categorical)
Discrete
Continuous
Grouped
Ungrouped
Primary
Secondary
Nominal
Ordinal

Question 2

Types of data scales

Answer 2

Nominal
Ordinal
Interval
Ratio

Question 3

Types of categorical data

Answer 3

Nominal (no logical order) (religion)
Ordinal (logical order) (happiness)

Question 4

Nominal data

Answer 4

Blood types
Mode possible
No mean median is possible

Question 5

Ordinal data

Answer 5

Happiness, Disease severity
Mean / median possible

Mode not possible as difference between subsequent value is not equal.

Question 6

Numeric data

Answer 6

1
Discrete (whole no. )
Continous (decimals included)
2
Interval data (logical order with equal interval) (add/ subtract, mean, median, mode)(calculate ratios)
Ratio data (meaningful zero) (multiplication/division)

Question 7

Sampling

Answer 7

Scientific and objective procedure selecting na. Of study units

Question 8

Classification of sampling

Answer 8

Probability sampling method
Simple random
Systemic random
Stratified random
Multi stage random
Cluster
Multi phase random
Non- probability sampling methods
Quote
Purposive
Convenience

Question 9

Random sampling

Answer 9

Lottery method
Random table
Computer generated random numbers